The way I read it, it means the agreement starts next year (becuase Universal has it through this season) and continues UNTIL the 2017-18 season. So basically Ice Network has the rights for 2013-2014 through AND INCLUDING 2017-2018
Another relevant paragraph (linked from here: http://web.icenetwork.com/news/artic...&vkey=ice_news)
The ISU agreement with icenetwork.com, a wholly owned subsidiary of U.S. Figure Skating, operated and managed by MLB Advanced Media (MLBAM), covers multiple distribution platforms and guarantees live coverage of ISU events, including the World Figure Skating Championships, the Four Continents Championships and the Grand Prix of Figure Skating Series, on icenetwork.com, as well as television coverage on NBC, NBC Sports Network and Universal Sports.
Also, I get the sense that icenetwork, in turn is extending rights to, NBC Universal, which owns NBC, NBC Sports Network and a minority interest in Universal Sports:
Approximately 20 hours of icenetwork.com's ISU figure skating rights will be shown on NBC annually, including the world championships in primetime during non-Olympic years, and the ISU Grand Prix Series. ISU events will also be seen on cable television, with NBC Sports Network showing select coverage of ISU speed skating events, including the World Sprint Speed Skating Championships and the World Short Track Speed Skating Championships. Universal Sports will continue to expand its coverage of all ISU events, with more than 50 hours of programming dedicated to figure skating and speed skating annually, including the World Figure Skating Championships, European Figure Skating Championships, Four Continents Figure Skating Championships, Grand Prix Series and select speed skating competitions.